h improved model for simulating impedance spectroscopy
نویسندگان
چکیده
A numerical method for simulating the frequency-dependent impedance response of multi-phase composite materials has been developed. The algorithm takes as input 1) a digital image of a microstructure, in two or three dimensions, of any specified composite material, and 2) the frequency-dependent electrical properties of the individual phases of the composite. Art impedance spectrum of any frequeney range can then be computed using a conjugate gradient algorithm operating on a finite difference solution scheme of Laplace's equation. Examples are given of the impedance of analytically solvable microstructure, to validate the algorithm, and of a random system, to test the usefulness of two different effective medium theories.
منابع مشابه
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تاریخ انتشار 1994